The DNG file format has been an option in the Lightroom workflow for nearly 14 years now, but there’s still a lot of questions about when, if, and why to use it. Originally developed by Adobe as an answer to the growing volume of proprietary RAW formats put out by each camera manufacturer, we’ve yet to see the major camera brands provide a native DNG option for their customers (Leica, Pentax, and a few others excepted).